Vichang Tungsten Carbide Small Drill Bit Stainless Steel Hole Drilling Cobalt Helix Drill CNC Numerical Control Alloy 2.0-3.15mm
Cobalt-containing single-edged chamfering tool, stainless steel chamfering wonder, chamfering blade, 90-degree drill bit, internal chip removal, deburring
2F1/2小柄麻花鑽頭打孔鋼鐵金屬木工高速鋼不鏽鋼超硬等柄含鈷鑽
